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England · Local authority

Welwyn Hatfield planning applications

PlanningTrack collects planning applications and decisions from the public planning register of Welwyn Hatfield Borough Council. Search an address, application reference or proposal. Official Welwyn Hatfield website

Collected application statistics

Collected records · All available dates
40,229Searchable applications
309Recorded as pending
86%Approval rate · 33,738 approved or refused records
4,810Refused applications

28,928 approved · 4,810 refused · 2,212 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 6 Nov 2026. Counts reflect the last collected status; some records may be out of date.

Local planning information

Council sources checked 14 Sept 2026
Planning information Planning and buildingLocal plan Our Local PlanPre-application advice Pre-application advice (planning applications)Conservation areas Schedule of properties removed from the Welwyn Conservation AreaArticle 4 directions Article 4 Directions

Conservation areas and Article 4 directions

Explore published planning boundaries and follow their source records for designation details. Coverage varies: an empty map does not mean there are no restrictions. Check the council’s current maps and documents before relying on a boundary.

Conservation areas9 mapped area records
Article 4 direction areasNo boundary records available in this collection

Interactive planning map loads with JavaScript. Dataset sources are linked below.

Download Article 4 coverage for all authorities (CSV)

Data downloaded 14 Sept 2026. Display boundaries are simplified and indicative. Map record counts are not a complete count of designations or directions.

Sources: Planning Data conservation areas and Article 4 direction areas. Contains public sector information licensed under the Open Government Licence v3.0.

More application records

  1. Decided - Refused6/2018/1611/LAWP

    Certificate of lawfulness for the erection of single storey rear extension, installation of PVC windows and doors and change of cladding from hanging tile to cedral board

    43 Carleton Rise Welwyn AL6 9RQ

    Received 18 Jun 2018
  2. Decided - Granted6/2025/1864/EMT

    1 x Silver birch to crown reduce by 20% and to crown thin by 10-15%

    71 Marsden Road Welwyn Garden City AL8 6YH

    Received 2 Sept 2025
  3. Decided - Granted6/2023/0232/PN8

    Prior approval for the erection of a single storey rear extension measuring 8m in depth, 3.8m in height and 2.9m to the eaves

    75 The Ridgeway Cuffley Potters Bar EN6 4BD

    Received 31 Jan 2023
  4. Decided - Granted6/2016/0721/TPO

    Reduce Yew tree by 30% - Conservation Area

    4 Handside Lane, Welwyn Garden City, AL8 6SF

    Received 18 Apr 2016
  5. Decided - WithdrawnN6/2007/0776/FP

    ERECTION OF NEW DWELLING

    Site adjoining 6 London Road Welwyn AL6

    Received 21 May 2007
  6. Decided - GrantedW6/2014/2126/EM

    Garage conversion including raised flat roof and first floor side window

    3 Coneydale, Welwyn Garden City, AL8 7RX

    Received 25 Jul 2014
  7. Decided - Granted6/2015/2083/TPO

    DD Application - Removal of deadwood and 25% reduction inc dead branches of Locust tree - Conservation Area.

    13 Meadow Green, Welwyn Garden City, AL8 6SS

    Received 7 Oct 2015
  8. Decided - GrantedN6/2004/0638/CD

    ERECTION OF SINGLE STOREY EXTENSION

    Tenterfield Nursery School London Road Welwyn AL6 9JF

    Received 29 Apr 2004
  9. Decided - RefusedS6/2006/0216/FP

    ERECTION OF EXTERNAL STAIRCASE AT REAR OF PROPERTY TO PROVIDE ACCESS TO PROPOSED ROOFLIGHT

    53 Pooleys Lane Welham Green Hatfield AL9 7LG

    Received 20 Feb 2006
  10. Decided - GrantedW6/2013/1836/TE

    Removal of Goat Willow tree

    1 Coneydale, WELWYN GARDEN CITY, AL8 7RX

    Received 15 Aug 2013
  11. Decided - Granted6/2023/1492/HOUSE

    Erection of a single storey side extension and timber shed in front garden

    1A New Road Woolmer Green SG3 6JX

    Received 17 Jul 2023
  12. Decided - Granted6/2021/1169/FULL

    Erection of 85m squared single storey external classroom.

    Oaklands Primary School Great North Road Welwyn AL6 0PX

    Received 12 Apr 2021
  13. Decided6/2017/2441/TPO

    Fell 5 x Lawson Cypress trees - Conservation Area

    The Manor House Hill Farm Lane Welwyn AL6 9BP

    Received 23 Oct 2017
  14. Decided - GrantedS6/2004/0953/FP

    ERECTION OF SINGLE STOREY SIDE EXTENSION TO FORM GARDEN ROOM.

    10 Vineyards Road Northaw Potters Bar EN6 4PA

    Received 23 Jun 2004
  15. Decided - RefusedN6/2009/1576/FP

    ERECTION OF FRONT PORCH, CONSERVATORY TO SIDE OF PROPERTY, CONVERSION OF EXISTING INTEGRAL DOUBLE GARAGE INTO HABITABLE ACCOMODATION AND ERECTION OF DETACHED GARAGE ON FRONTAGE OF SITE

    Beechlands 19 Heath Road Welwyn AL6 0TP

    Received 23 Jul 2009
  16. Decided - RefusedN6/2010/0205/NM

    NON-MATERIAL AMENDMENTS TO PLANNING PERMISSION N6/2008/2215/FP COMPRISING OF: RAISING OF ROOF TO REAR OF GARAGE

    8 Whetstone Close Welwyn AL6 0QW

    Received 3 Feb 2010
  17. Decided - Granted6/2016/1514/HOUSE

    Erection of car port and walled entrance with gate, conversion of garage and installation of front dormer

    4 Wendover Drive Welwyn AL6 9LT

    Received 26 Jul 2016
  18. DecidedS6/2015/0172/TN

    Installation of pole mounted antenna

    Veolia Water Central, The Hub, Tamblin Way, Hatfield, AL10 9EZ

    Received 26 Jan 2015
  19. Decided - Refused6/2022/2709/LAWP

    Certificate of lawfulness for dormer extension

    11A Station Road Welham Green Hatfield AL9 7PN

    Received 30 Nov 2022
  20. Decided - Granted6/2021/2748/PN8

    Prior approval for the erection of a single storey rear extension measuring 8m in depth, 3.13m in height, 3m to the eaves

    35 Northaw Road East Cuffley Potters Bar EN6 4LU

    Received 22 Sept 2021
  21. Decided - Granted6/2015/2385/HOUSE

    Single storey rear extension following demolition of rear conservatory

    17 Bluebridge Avenue, Brookmans Park, Hatfield, AL9 7RY

    Received 25 Nov 2015
  22. Decided - Granted6/2023/2414/EMT

    T1 Silver Birch crown reduction by 33%

    37 Blakemere Road Welwyn Garden City AL8 7PQ

    Received 30 Nov 2023
  23. Decided - Granted6/2016/1772/TPO

    Reduce Sycamore tree by 30% - Conservation Area

    228 Handside Lane, Welwyn Garden City, AL8 6TD

    Received 15 Aug 2016
  24. Decided - Granted6/2016/0397/EM

    Fell Leyland Cypress tree

    12 Barleycroft Green, Welwyn Garden City, AL8 6JY

    Received 7 Mar 2016

Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.

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Researching a proposal in Welwyn Hatfield Borough Council

Start with the address or application reference. Open a record to read the proposal, dates and available documents, then check the official register for the latest plans and consultation details. If nothing appears, check coverage before treating the result as a complete planning history.

How to search planning applications

Guides to planning records

All planning guides

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    Planning application documents: what to read first

    Understand planning application documents, officer reports and decision notices. Use a reading checklist, document table and worked example to inspect a case.

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  • Understanding planning · 13 min read

    Planning permission drawings: how to read plans

    Read planning drawings, floor plans, elevations and sections. Use labelled diagrams, a drawing comparison table and revision checks to understand a proposal.

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  • Property research · 13 min read

    Planning approval rates: how to read council statistics

    Understand planning approval rates with an interactive calculator, worked examples and comparison table. Check sample sizes, outcomes and coverage before comparing.

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What these statistics cover

These figures describe applications collected by PlanningTrack for Welwyn Hatfield Borough Council, across all dates currently available. They are a partial dataset, rather than an authority-wide performance measure. The date range does not establish continuous historical coverage.

The approval percentage is approved records divided by approved plus refused records. Pending, withdrawn and unknown outcomes are excluded. No percentage is shown until there is an approved or refused record.

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